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网易视频 > 拍客

截至2015年底我省万人拥有有效发明专利5.29件

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标签:社会新闻 发明 专利 知识产权 产权 知识 发明专利 一带一路 人才 培养
来源:爱奇异时间:2016-04-27 13:32:23

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